# x = 20  # 直接赋值
# y = 10
# x += y  # 等价于 x = x + y
# print(x)

# x = 20  # 直接赋值
# y = 10
# x -= y  # 等价于 x = x-y
# print(x)

# x = 20  # 直接赋值
# y = 10
# x *= y  # 等价于 x = x*y
# print(x)
#
# x = 20  # 直接赋值
# y = 10
# x /= y  # 等价于 x = x / y
# print(x)


# x = 20  # 直接赋值
# y = 9
# x %= y  # 等价于 x = x % y
# print(x)

# x = 2  # 直接赋值
# y = 3
# x **= y  # 等价于 x = x ** y
# print(x)

x = 7  # 直接赋值
y = 3
x //= y  # 等价于 x = x // y
print(x)